Réamhaisnéis limistear na farraige
Forecast valid from: 18:00, Sunday 23 November 2025 until 18:00, Monday 24 November 2025
Small Craft Warning
Southerly winds becoming westerly or cyclonic variable will reach force 6 or higher at times on all Irish coasts throughout the period.
Gale Warning
1. Westerly winds will reach gale force 8 or strong gale force 9 at times today on Irish coastal waters from Valentia to Erris Head to Malin Head. 2. West to northwest winds will reach gale force 8 or strong gale force 9 at times tonight and tomorrow morning on Irish coastal waters from Howth Head to Roches Point to Rossan Point and on the Irish Sea South of Anglesey.
Atlantic Swell
Yes
Meteorological Situation at 15:00 UTC
Low pressure of 983hPa centered approximately 40 nautical miles northwest of Bloody Foreland generates a strong to gale force southwest to west airflow over Ireland.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Belfast Lough to Carlingford Lough to Howth Head and for the north Irish Sea
Wind: Southwesterly force 6 or 7, decreasing westerly or cyclonic variable force 4 to 6 imminent. Soon veering northerly force 5 or 6. Later increasing force 6 or 7.
Weather: Cloudy to fair with scattered showers or longer spells of rain. Clearing southwards later. A chance of hail or thunder possible. Cloudy to fair with scattered showers or longer spells of rain. A chance of hail or thunder possible. Clearing southwards later.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Howth Head to Roche's Point to Slyne Head and for the south Irish Sea
Wind: Westerly force 6 or 7, increasing to gale force 8 between Valentia and Slyne Head imminent. Soon veering north to northwest force 6 or 7 and occasionally gale force 8. Later decreasing northerly force 5 or 6 and occasionally force 7 between Howth Head and Roches Point.
Weather: Cloudy to fair with scattered showers or longer spells of rain. Later clearing southwards. A chance of hail and thunder too.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Forecast for Irish coastal waters from Slyne Head to Bloody Foreland to Belfast Lough
Wind: Westerly gale force 8, and occasionally strong gale force 9 between Slyne Head and Rossan Point. West to northwest or cyclonic variable force 6 or 7 elsewhere. Soon decreasing northerly force 5 or 6, and occasionally force 7.
Weather: Cloudy to fair with widespread showers becoming more isolated later. A chance of hail and thunder too.
Visibility: Reducing moderate or poor in precipitation, otherwise good.
Outlook for a further 24 hours until 18:00, Tuesday 25 November 2025
Fresh to strong northerly winds will gradually ease light to moderate from the west on Tuesday morning. Weather: Mostly fair with isolated showers.
Forecast issued at: 18:00, Sunday 23 November 2025
All times are local unless specified
